#37503A
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.4% 0.048 147.7), rgb(55, 80, 58).
Aa
White text reads best on this color (8.85:1).
About this color
#37503A is a dark, muted green. In OKLCH its lightness is 40%, its chroma 0.048 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.036 away. White text reads best on it, at 8.85:1.
| Hue family | Greens |
| Lightness | dark (40%) |
| Chroma | muted (0.048) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.37:1 |
| White text | 8.85:1 |
Values
| HEX | #37503A |
| RGB | rgb(55, 80, 58) |
| HSL | hsl(127, 19%, 26%) |
| OKLCH | oklch(40.4% 0.048 147.7) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #37503A | 8.85:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #37503A | 2.37:1 | Fails | Lc 13.7 | Not readable |
| #37503A text on white | 8.85:1 | AAA | Lc 90.2 | Preferred for body text |
| #37503A text on black | 2.37:1 | Fails | Lc -12.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E6EBE7
oklch(93.5% 0.008 151.9)
-
Step 200
200
#D3DCD3
oklch(88.5% 0.016 145.4)
-
Step 300
300
#B5C6B7
oklch(80.9% 0.028 148.8)
-
Step 400
400
#8FA991
oklch(70.8% 0.045 147.2)
-
Step 500
500
#739376
oklch(63.1% 0.056 147.4)
-
Step 600
600
#5B7E5F
oklch(55.8% 0.062 147.7)
-
Step 700
700
#4A6A4E
oklch(49.1% 0.058 147.9)
-
Step 800
800 (this color)
#37503A
oklch(40.4% 0.048 147.7)
-
Step 900
900
#344736
oklch(37.6% 0.037 147.6)
-
Step 950
950
#1F2A20
oklch(27.1% 0.024 147.3)
#37503A with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #514C39 | 0.040 |
| Deuteranopia (no green cones) | #4D493B | 0.039 |
| Tritanopia (no blue cones) | #344F4A | 0.027 |
| Achromatopsia (no color) | #4A4A4A | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37503A
#37503A
oklch(40.4% 0.048 147.7)
- #574056
#574056
oklch(40.5% 0.047 327.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #37503A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.036
- Dark Blue Green #005249 ΔE 0.043
- Pine #2B5D34 ΔE 0.048
- Dark Teal #014D4E ΔE 0.054
- Charcoal Grey #3C4142 ΔE 0.056
- Deep Teal #00555A ΔE 0.057
- Spruce #0A5F38 ΔE 0.058
- Navy Green #35530A ΔE 0.059
Use #37503A in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.